These are the best professional 1/4” Hex Power Shanks available. And now with our new TPS-Lock®System, you have the positive drive provided by a one piece tool and cost savings provided by a drill with a detachable shank, plus a Lifetime Guarantee** against breakage. Our TPS-Lock®System will not release the drill until you are ready to take it apart.

How to engage the TPS-Lock® grip:

Align the flat provided on the shank of the new replacement drill with the set screw hole. Use a small hammer to tap the shank onto the replacement drill. Replace and tighten the set screw.

How to release the TPS-Lock® grip:

Loosen and remove the single hex socket set screw. Tap on the shank to drive it off the drill.